sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h

   1 /* Copyright (C) 2000-2025 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _BITS_SIGCONTEXT_H
  19 #define _BITS_SIGCONTEXT_H 1
  20
  21 #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
  22 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
  23 #endif
  24
  25 #include <bits/wordsize.h>
  26
  27 #if __WORDSIZE == 32
  28
  29 /* It is quite hard to choose what to put here, because
  30    Linux/sparc32 had at least 3 totally incompatible
  31    signal stack layouts.
  32    This one is for the "new" style signals, which are
  33    now delivered unless SA_SIGINFO is requested.  */
  34
  35 struct sigcontext
  36   {
  37     struct
  38       {
  39         unsigned int    psr;
  40         unsigned int    pc;
  41         unsigned int    npc;
  42         unsigned int    y;
  43         unsigned int    u_regs[16]; /* globals and ins */
  44       }                 si_regs;
  45     int                 si_mask;
  46   };
  47
  48 #else /* sparc64 */
  49
  50 typedef struct
  51   {
  52     unsigned int        si_float_regs [64];
  53     unsigned long       si_fsr;
  54     unsigned long       si_gsr;
  55     unsigned long       si_fprs;
  56   } __siginfo_fpu_t;
  57
  58 struct sigcontext
  59   {
  60     char                sigc_info[128];
  61     struct
  62       {
  63         unsigned long   u_regs[16]; /* globals and ins */
  64         unsigned long   tstate;
  65         unsigned long   tpc;
  66         unsigned long   tnpc;
  67         unsigned int    y;
  68         unsigned int    fprs;
  69       }                 sigc_regs;
  70     __siginfo_fpu_t *   sigc_fpu_save;
  71     struct
  72       {
  73         void *          ss_sp;
  74         int             ss_flags;
  75         unsigned long   ss_size;
  76       }                 sigc_stack;
  77     unsigned long       sigc_mask;
  78 };
  79
  80 #endif /* sparc64 */
  81
  82 #endif /* bits/sigcontext.h */